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Bone contains a relatively small number of cells entrenched in a matrix of collagen fibers that provide an adherent surface for inorganic salt crystals. Both components of the matrix, organic and inorganic, contribute to the unusual properties of bone. Without collagen, bones would be brittle and shatter easily. Without mineral crystals, bones would flex and provide little support. This can be observed by an experiment: when the minerals of a bone are dissolved by soaking the bone in...
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Bone tissue forms the internal skeleton of vertebrate animals, providing structure to the body.
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Fat and bone interactions.

Sandra Bermeo1, Krishanthi Gunaratnam, Gustavo Duque

  • 1Ageing Bone Research Program, Sydney Medical School Nepean, The University of Sydney, Level 5, South Block, Nepean Hospital, Penrith, NSW., Australia, 2750.

Current Osteoporosis Reports
|March 7, 2014
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Summary
This summary is machine-generated.

Fat within bone marrow negatively impacts bone cells, contributing to osteoporosis. Targeting this local fat-bone interaction may offer new treatments for bone loss.

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Area of Science:

  • Bone biology
  • Metabolic interactions
  • Cellular pathology

Background:

  • Obesity is paradoxically linked to lower fracture risk, yet circulating factors from adipose tissue can harm bone.
  • Local interactions between bone and marrow fat are increasingly implicated in age-related bone loss and osteoporosis.

Purpose of the Study:

  • To review the intricate relationship between fat and bone cells within the bone marrow.
  • To elucidate the role of these interactions in osteoporosis pathogenesis.
  • To explore therapeutic strategies targeting bone marrow fat for osteoporosis treatment.

Main Methods:

  • Literature review of studies on bone marrow adiposity and osteoporosis.
  • Analysis of cellular and molecular mechanisms of fat-bone crosstalk.
  • Examination of preclinical and clinical data on therapeutic interventions.

Main Results:

  • Adipose tissue within the bone marrow releases fatty acids and adipokines.
  • These local factors impair osteoblast function and survival, promoting bone loss.
  • Evidence suggests a significant contribution of marrow fat to osteoporosis.

Conclusions:

  • The local interplay between bone marrow fat and bone cells is critical in osteoporosis.
  • Regulating bone marrow adiposity presents a promising avenue for novel osteoporosis pharmacotherapies.